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Patient Classification According to the Neck Disability Index at Baseline and Follow-Up.
| Baseline NDI | Follow-up NDI | |
|---|---|---|
| Severe or complete disability | 45 (29%) | 15 (10%) |
| Moderate disability | 52 (33%) | 25 (16%) |
| Mild disability | 59 (38%) | 60 (39%) |
| No disability/Recovered | 0 (0%) | 56 (36%) |
Values are expressed as frequency distributions of disability levels and the corresponding percentage (%). NDI: Neck disability index.
